In 1973, Spain introduced Louisiana red swamp crayfish; more than 50 years later, the invasive species is still nearly impossible to eradicate

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• Hindustan TimesLean L·1h ago

  In 1973, Spain introduced Louisiana red swamp crayfish; more than 50 years later, the invasive species is still nearly impossible to eradicate

  Louisiana crayfish reached Spain in 1973 and 1974. Now the world's most widespread freshwater crayfish, it harms farms and is too costly to wipe out.

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